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ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris)
ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris)
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ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris)
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 (10-22-2018, 05:48 PM)paul cooper Wrote:pual cooper, are you from USA or Romania ?(10-22-2018, 02:51 PM)brotherbear Wrote: Vegeta San - Old news. Your "4" attempts have been discussed more times than you can imagine. I am sure that historically there have been bloody fights within the wilderness of Russia where full-grown grizzlies have been killed by tigers. A tiger is a predator, perhaps the greatest land-based predator living. He is a professional assassin - a killer. He has the tools of the trade and knows how to use them. However, we have no eye-witness accounts and no proof that would stand-up in a courtroom. We are all waiting for that.  (10-22-2018, 09:14 PM)Smilodon-Rex Wrote:(10-22-2018, 05:48 PM)paul cooper Wrote:pual cooper, are you from USA or Romania ?(10-22-2018, 02:51 PM)brotherbear Wrote: Vegeta San - Old news. Your "4" attempts have been discussed more times than you can imagine. I am sure that historically there have been bloody fights within the wilderness of Russia where full-grown grizzlies have been killed by tigers. A tiger is a predator, perhaps the greatest land-based predator living. He is a professional assassin - a killer. He has the tools of the trade and knows how to use them. However, we have no eye-witness accounts and no proof that would stand-up in a courtroom. We are all waiting for that. Im visiting. Im romanian and greek but born and live in America.
New study bros, they identified all the known tiger subspecies and they look for into the tigers evolutionary history. Interesting read.
Highlights • Whole-genome sequencing of 32 voucher specimens reveals six clades in tigers • The time to the most recent common ancestor of modern tigers is recent at 110 kya • Gene flow is restricted across the range supporting the intraspecific distinction • ADH7 shows signal of selection in Sumatran tigers likely associated with adaptation Summary No other species attracts more international resources, public attention, and protracted controversies over its intraspecific taxonomy than the tiger (Panthera tigris). Today, fewer than 4,000 free-ranging tigers survive, covering only 7% of their historical range, and debates persist over whether they comprise six, five, or two subspecies. The lack of consensus over the number of tiger subspecies has partially hindered the global effort to recover the species from the brink of extinction, as both captive breeding and landscape intervention of wild populations increasingly require an explicit delineation of the conservation management units. The recent coalescence to a late Pleistocene bottleneck (circa 110 kya) poses challenges for detecting tiger subspecific morphological traits, suggesting that elucidating intraspecific evolution in the tiger requires analyses at the genomic scale. Here, we present whole-genome sequencing analyses from 32 voucher specimens that resolve six statistically robust monophyletic clades corresponding to extant subspecies, including the recently recognized Malayan tiger (P. tigris jacksoni). The intersubspecies gene flow is very low, corroborating the recognized phylogeographic units. We identified multiple genomic regions that are candidates for identifying the adaptive divergence of subspecies. The body-size-related gene ADH7 appears to have been strongly selected in the Sumatran tiger, perhaps in association with adaptation to the tropical Sunda Islands. The identified genomic signatures provide a solid basis for recognizing appropriate conservation management units in the tiger and can benefit global conservation strategic planning for this charismatic megafauna icon. Full study: https://www.cell.com/current-biology/ful...ctitle0020 Interesting read.  
Thank you for sharing @
This document is very important to understand the tiger evolution. Thank you for found it @
(10-22-2018, 09:54 PM)paul cooper Wrote:(10-22-2018, 09:14 PM)Smilodon-Rex Wrote:(10-22-2018, 05:48 PM)paul cooper Wrote:pual cooper, are you from USA or Romania ?(10-22-2018, 02:51 PM)brotherbear Wrote: Vegeta San - Old news. Your "4" attempts have been discussed more times than you can imagine. I am sure that historically there have been bloody fights within the wilderness of Russia where full-grown grizzlies have been killed by tigers. A tiger is a predator, perhaps the greatest land-based predator living. He is a professional assassin - a killer. He has the tools of the trade and knows how to use them. However, we have no eye-witness accounts and no proof that would stand-up in a courtroom. We are all waiting for that. Im now going on the plane to visit Zurich Switzerland @Spalea 
@tigerluver @GuateGojira @paul cooper : How funny :
https://wildfact.com/forum/topic-bigcats...5#pid61395 At #1451 @paul cooper : About #1873: what a good idea ! Do you want us to choose our weapons for a duel ? 
Title - Interspecific relationships between the Amur tiger (Panthera tigris altaica) and the brown (Ursus arctos) and Asiatic black bears (Ursus thibetanus) - I
In - Zoologicheskh Zhurnal, 2017, Vol. 96, No. 12 (december), pp. 1446-1458 Authors - Seryodkin IV, Miquelle DG, Goodrich JM, Kostyria AV, Petrunenko YK Received - October 16, 2016 Published - December 2017 Source - The article, most probably, was posted by WaveRiders at the Carnivora Forum. It was printed, underlined at parts (in red) and scanned. About black and red - WaveRiders added extra black (text) and red (tables). I added red (text) after it was printed. Remarks - Although published in December 2017, the article is based on research between 1992-2013. Research - The article is based on original research (a), research of others (b) and literature ©. Comment - Next post.  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author
(10-30-2018, 11:32 PM)peter Wrote: Title - Interspecific relationships between the Amur tiger (Panthera tigris altaica) and the brown (Ursus arctos) and Asiatic black bears (Ursus thibetanus) I thought, that that document was already published here before, but apparently not. I read that quite some time ago already. I found nothing dramatic there which would give some really essential new information, more like confirming what could have been concluded before. Of course one of the first researches where focus has been specifically in relationship between Amur tigers and brown bears. I have to say, that I have been waiting something which would be opening up old cases more, not just rough references to other sources. In a way this report is informative, but then again.... pretty much repeating old information without opening up known cases too much. (10-30-2018, 11:32 PM)peter Wrote: Title - Interspecific relationships between the Amur tiger (Panthera tigris altaica) and the brown (Ursus arctos) and Asiatic black bears (Ursus thibetanus) One question. I remembered, that that is in researchgate in russian language. Do you know if this is official translation of that report or is this translated by some unknown person? I think, that I haven´t seen official translation of that report published publicly, so it would be nice to know. (10-31-2018, 12:26 AM)Shadow Wrote:(10-30-2018, 11:32 PM)peter Wrote: Title - Interspecific relationships between the Amur tiger (Panthera tigris altaica) and the brown (Ursus arctos) and Asiatic black bears (Ursus thibetanus) I didn't see an official translation either. My guess is it was translated by poster WaveRiders of Carnivora. (10-31-2018, 02:44 PM)peter Wrote:(10-31-2018, 12:26 AM)Shadow Wrote:(10-30-2018, 11:32 PM)peter Wrote: Title - Interspecific relationships between the Amur tiger (Panthera tigris altaica) and the brown (Ursus arctos) and Asiatic black bears (Ursus thibetanus) I thought so, some odd sentences also in this document even though it is made to look like official version. I don´t like it, when people make their own translations and then make those look like official reports. Unofficial translations shouldn´t be misleadingly looking like original/official documents. Even though if it would be a good one, there is still possibility to some relevant mistakes in some details if not inspected by researchers, who have done original report. 
Very interesting read. I have read just a little from other resources about the seemingly unusual cases of bear and tiger feeding "side-by-side" on a carcass. I have seen grizzlies and wolves on documentaries do this.
(10-31-2018, 03:36 PM)brotherbear Wrote: Very interesting read. I have read just a little from other resources about the seemingly unusual cases of bear and tiger feeding "side-by-side" on a carcass. I have seen grizzlies and wolves on documentaries do this. That is mentioned in many other reports. Side by side is most probably not the case as it can be with bears and wolves if I have understood correctly. More like in turns, so tiger and bear know, that both are there and one eats when other one has eaten as much as it eats and goes to rest and digest the food. Wolves and bears can be there even at the same time on carcass. I´m not 100% sure and I think, that no-one has been there witnessing how it goes. But I have got this image from different reports etc. In some way it makes more sense than thinking these animals there one eating other end and one another end of carcass... Wolf and bear can do even that, but for a bear and tiger I assume it to be impossible, too much mutual threat too close making it very difficult to eat calmly. |
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